diff --git a/CHANGELOG.rst b/CHANGELOG.rst
index 44a7f9a39..0f6f7ad02 100644
--- a/CHANGELOG.rst
+++ b/CHANGELOG.rst
@@ -1,5 +1,5 @@
-3.0.4.dev
-=========
+3.0.4.dev0
+==========
 
 *
 
diff --git a/_pytest/__init__.py b/_pytest/__init__.py
index d9f72e9b4..b070c40d1 100644
--- a/_pytest/__init__.py
+++ b/_pytest/__init__.py
@@ -1,2 +1,2 @@
 #
-__version__ = '3.0.4.dev'
+__version__ = '3.0.4.dev0'